Determine GCF(42856,42856)
GCF = Largest factor that divides numbers
1,2,4,8,11,22,44,88,487,974,1948,3896,5357,10714,21428,42856
1,2,4,8,11,22,44,88,487,974,1948,3896,5357,10714,21428,42856
1,2,4,8,11,22,44,88,487,974,1948,3896,5357,10714,21428,42856
GCF(42856,42856) = 42856Since GCF ≠ 1, they are not relatively prime (co-prime)
Since GCF ≠ 1 and have a difference of two, the numbers are not twin prime